Remove dead code in ports/.

src/ports/SkXMLPullParser_expat.cpp

-
-/*
- * Copyright 2006 The Android Open Source Project
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-#include "SkXMLParser.h"
-#include "SkChunkAlloc.h"
-#include "SkString.h"
-#include "SkStream.h"
-
-#include "expat.h"
-
-static inline char* dupstr(SkChunkAlloc& chunk, const char src[], size_t len)
-{
-    SkASSERT(src);
-    char*   dst = (char*)chunk.alloc(len + 1, SkChunkAlloc::kThrow_AllocFailType);
-
-    memcpy(dst, src, len);
-    dst[len] = 0;
-    return dst;
-}
-
-static inline int count_pairs(const char** p)
-{
-    const char** start = p;
-    while (*p)
-    {
-        SkASSERT(p[1] != NULL);
-        p += 2;
-    }
-    return (p - start) >> 1;
-}
-
-struct Data {
-    Data() : fAlloc(2048), fState(NORMAL) {}
-
-    XML_Parser              fParser;
-    SkXMLPullParser::Curr*  fCurr;
-    SkChunkAlloc            fAlloc;
-
-    enum State {
-        NORMAL,
-        MISSED_START_TAG,
-        RETURN_END_TAG
-    };
-    State fState;
-    const char* fEndTag;    // if state is RETURN_END_TAG
-};
-
-static void XMLCALL start_proc(void *data, const char *el, const char **attr)
-{
-    Data*                   p = (Data*)data;
-    SkXMLPullParser::Curr*  c = p->fCurr;
-    SkChunkAlloc&           alloc = p->fAlloc;
-
-    c->fName = dupstr(alloc, el, strlen(el));
-
-    int n = count_pairs(attr);
-    SkXMLPullParser::AttrInfo* info = (SkXMLPullParser::AttrInfo*)alloc.alloc(n * sizeof(SkXMLPullParser::AttrInfo),
-                                                                              SkChunkAlloc::kThrow_AllocFailType);
-    c->fAttrInfoCount = n;
-    c->fAttrInfos = info;
-
-    for (int i = 0; i < n; i++)
-    {
-        info[i].fName = dupstr(alloc, attr[0], strlen(attr[0]));
-        info[i].fValue = dupstr(alloc, attr[1], strlen(attr[1]));
-        attr += 2;
-    }
-
-    c->fEventType = SkXMLPullParser::START_TAG;
-    XML_StopParser(p->fParser, true);
-}
-
-static void XMLCALL end_proc(void *data, const char *el)
-{
-    Data*                   p = (Data*)data;
-    SkXMLPullParser::Curr*  c = p->fCurr;
-
-    if (c->fEventType == SkXMLPullParser::START_TAG)
-    {
-        /*  if we get here, we were called with a start_tag immediately
-            followed by this end_tag. The caller will only see the end_tag,
-            so we set a flag to notify them of the missed start_tag
-        */
-        p->fState = Data::MISSED_START_TAG;
-
-        SkASSERT(c->fName != NULL);
-        SkASSERT(strcmp(c->fName, el) == 0);
-    }
-    else
-        c->fName = dupstr(p->fAlloc, el, strlen(el));
-
-    c->fEventType = SkXMLPullParser::END_TAG;
-    XML_StopParser(p->fParser, true);
-}
-
-#include <ctype.h>
-
-static bool isws(const char s[])
-{
-    for (; *s; s++)
-        if (!isspace(*s))
-            return false;
-    return true;
-}
-
-static void XMLCALL text_proc(void* data, const char* text, int len)
-{
-    Data*                   p = (Data*)data;
-    SkXMLPullParser::Curr*  c = p->fCurr;
-
-    c->fName = dupstr(p->fAlloc, text, len);
-    c->fIsWhitespace = isws(c->fName);
-
-    c->fEventType = SkXMLPullParser::TEXT;
-    XML_StopParser(p->fParser, true);
-}
-
-//////////////////////////////////////////////////////////////////////////
-
-struct SkXMLPullParser::Impl {
-    Data    fData;
-    void*   fBuffer;
-    size_t  fBufferLen;
-};
-
-static void reportError(XML_Parser parser)
-{
-    XML_Error code = XML_GetErrorCode(parser);
-    int lineNumber = XML_GetCurrentLineNumber(parser);
-    const char* msg = XML_ErrorString(code);
-
-    printf("-------- XML error [%d] on line %d, %s\n", code, lineNumber, msg);
-}
-
-bool SkXMLPullParser::onInit()
-{
-    fImpl = new Impl;
-
-    XML_Parser p = XML_ParserCreate(NULL);
-    SkASSERT(p);
-
-    fImpl->fData.fParser = p;
-    fImpl->fData.fCurr = &fCurr;
-
-    XML_SetElementHandler(p, start_proc, end_proc);
-    XML_SetCharacterDataHandler(p, text_proc);
-    XML_SetUserData(p, &fImpl->fData);
-
-    size_t len = fStream->getLength();
-    fImpl->fBufferLen = len;
-    fImpl->fBuffer = sk_malloc_throw(len);
-    fStream->rewind();
-    size_t  len2 = fStream->read(fImpl->fBuffer, len);
-    return len2 == len;
-}
-
-void SkXMLPullParser::onExit()
-{
-    sk_free(fImpl->fBuffer);
-    XML_ParserFree(fImpl->fData.fParser);
-    delete fImpl;
-    fImpl = NULL;
-}
-
-SkXMLPullParser::EventType SkXMLPullParser::onNextToken()
-{
-    if (Data::RETURN_END_TAG == fImpl->fData.fState)
-    {
-        fImpl->fData.fState = Data::NORMAL;
-        fCurr.fName = fImpl->fData.fEndTag; // restore name from (below) save
-        return SkXMLPullParser::END_TAG;
-    }
-
-    fImpl->fData.fAlloc.reset();
-
-    XML_Parser p = fImpl->fData.fParser;
-    XML_Status status;
-
-    status = XML_ResumeParser(p);
-
-CHECK_STATUS:
-    switch (status) {
-    case XML_STATUS_OK:
-        return SkXMLPullParser::END_DOCUMENT;
-
-    case XML_STATUS_ERROR:
-        if (XML_GetErrorCode(p) != XML_ERROR_NOT_SUSPENDED)
-        {
-            reportError(p);
-            return SkXMLPullParser::ERROR;
-        }
-        status = XML_Parse(p, (const char*)fImpl->fBuffer, fImpl->fBufferLen, true);
-        goto CHECK_STATUS;
-
-    case XML_STATUS_SUSPENDED:
-        if (Data::MISSED_START_TAG == fImpl->fData.fState)
-        {
-            // return a start_tag, and clear the flag so we return end_tag next
-            SkASSERT(SkXMLPullParser::END_TAG == fCurr.fEventType);
-            fImpl->fData.fState = Data::RETURN_END_TAG;
-            fImpl->fData.fEndTag = fCurr.fName;  // save this pointer
-            return SkXMLPullParser::START_TAG;
-        }
-        break;
-    }
-    return fCurr.fEventType;
-}